| Experimental studies on dimethylsulfide (DMS) and dimethylsulfoniopropionate (DMSP) production by four marine microalgae |
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| 作者姓名： | LI Chengxuan YANG Guipeng PAN Jinfen ZHANG Honghai |
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| 作者单位： | LI Chengxuan,YANG Guipeng,ZHANG Honghai(Key Laboratory of Marine Chemistry Theory and Technology,Ministry of Education,Ocean University of China,Qingdao 266100,China);PAN Jinfen(College of Environmental Science and Engineering,Ocean University of China,Qingdao 266100,China) |
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| 基金项目： | The National Natural Science Foundation of China under contract Nos 40525017 and 40476034; the Changjiang Scholars Programme, Ministry of Education of China; the Science and Technology Key Project of Shandong Province under contract No. 2006GG2205024; the “Taishan Scholar” Special Research Fund of Shandong Province, China. |
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| 摘 要： | The production of dimethylsulfide (DMS) and dimethylsulfoniopropionate (DMSP) by marine microalgae was investigated to elucidate more on the role of marine phytoplankton in ocean-atmosphere interactions in the global biogeochemical sulfur cycle.Axenic laboratory cultures of four marine microalgae–Isochrysis galbana 8701,Pavlova viridis,Platymonas sp.and Chlorella were tested for DMSP production and conversion into DMS.Among these four microalgae,Isochrysis galbana 8701 and Pavlova viridis are two species of Haptophyta,while Chlorella and Platymonas sp.belong to Chlorophyta.The results demonstrate that the four algae can produce various amounts of DMS(P),and their DMS(P) production was species specific.With similar cell size,more DMS was released by Haptophyta than that by Chlorophyta.DMS and dissolved DMSP (DMSPd) concentrations in algal cultures varied significantly during their life cycles.The highest release of DMS appeared in the senescent period for all the four algae.Variations in DMSP concentrations were in strong compliance with variations in algal cell densities during the growing period.A highly significant correlation was observed between the DMS and DMSPd concentrations in algal cultures,and there was a time lag for the variation trend of the DMS concentrations as compared with that of the DMSPd.The consistency of variation patterns of DMS and DMSPd implies that the DMSPd produced by phytoplankton cells has a marked effect on the production of DMS.In the present study,the authors’ results specify the significant contribution of the marine phytoplankton to DMS(P) production and the importance of biological control of DMS concentrations in oceanic water.
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| 关 键 词： | DMSP 海洋微藻 生产效果 实验室培养 二甲基硫 海洋浮游植物 浓度控制 绿色巴夫藻 |
| 收稿时间： | 14 June 2006 |
| 修稿时间： | 2009/12/26 0:00:00 |
Experimental studies on dimethylsulfide (DMS) and dimethylsulfoniopropionate (DMSP) production by four marine microalgae |
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| LI Chengxuan,YANG Guipeng,PAN Jinfen,ZHANG Honghai.Experimental studies on dimethylsulfide (DMS) and dimethylsulfoniopropionate (DMSP) production by four marine microalgae[J].Acta Oceanologica Sinica,2010,29(4):78-87. |
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| Authors: | LI Chengxuan YANG Guipeng PAN Jinfen and ZHANG Honghai |
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| Institution: | 1. Key Laboratory of Marine Chemistry Theory and Technology,Ministry of Education,Ocean University of China,Qingdao 266100,China
2. College of Environmental Science and Engineering,Ocean University of China,Qingdao 266100,China |
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| Abstract: | The production of dimethylsulfide (DMS) and dimethylsulfoniopropionate (DMSP) by marine microalgae was investigated to elucidate
more on the role of marine phytoplankton in ocean-atmosphere interactions in the global biogeochemical sulfur cycle. Axenic
laboratory cultures of four marine microalgae-Isochrysis galbana 8701, Pavlova viridis, Platymonas sp. and Chlorella were tested for DMSP production and conversion into DMS. Among these four microalgae, Isochrysis galbana 8701 and Pavlova viridis are two species of Haptophyta, while Chlorella and Platymonas sp. belong to Chlorophyta. The results demonstrate that the four algae can produce various amounts of DMS(P), and their DMS(P)
production was species specific. With similar cell size, more DMS was released by Haptophyta than that by Chlorophyta. DMS
and dissolved DMSP (DMSPd) concentrations in algal cultures varied significantly during their life cycles. The highest release
of DMS appeared in the senescent period for all the four algae. Variations in DMSP concentrations were in strong compliance
with variations in algal cell densities during the growing period. A highly significant correlation was observed between the
DMS and DMSPd concentrations in algal cultures, and there was a time lag for the variation trend of the DMS concentrations
as compared with that of the DMSPd. The consistency of variation patterns of DMS and DMSPd implies that the DMSPd produced
by phytoplankton cells has a marked effect on the production of DMS. In the present study, the authors’ results specify the
significant contribution of the marine phytoplankton to DMS(P) production and the importance of biological control of DMS
concentrations in oceanic water. |
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| Keywords: | dimethylsulfide (DMS) dimethylsulfoniopropionate (DMSP) marine microalgae growth stages production |
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